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Created page with "Unfortunately, Narval's AMD processors are ''incompatible'' with the [https://en.wikipedia.org/wiki/AVX-512 AVX512] instruction set (from https://en.wikipedia.org/wiki/Skylake..."
(Created page with "=AMD processors= == Supported instructions sets == Narval is equiped with 2nd and 3rd generation AMD EPYC processors which support [https://fr.wikipedia.org/wiki/Advanced_Ve...") |
(Created page with "Unfortunately, Narval's AMD processors are ''incompatible'' with the [https://en.wikipedia.org/wiki/AVX-512 AVX512] instruction set (from https://en.wikipedia.org/wiki/Skylake...") |
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Narval is equiped with 2nd and 3rd generation AMD EPYC processors which support [https://fr.wikipedia.org/wiki/Advanced_Vector_Extensions#Advanced_Vector_Extensions_2 AVX2 instructions]. This instruction set is identical to the one used by INTEL processors on the [[Béluga/en#Node_characteristics|Béluga]], [[Cedar#Node_characteristics|Cedar]], [[Graham#Node_characteristics|Graham]] et [[Niagara#Node_characteristics|Niagara]] nodes. The Narval AMD processors and the Intel processors of the [https://fr.wikipedia.org/wiki/Haswell_(microarchitecture) Haswell] generation are both restricted to the older AVX2 instructions. As such, applications compiled on a [[Cedarr#Node_characteristics|Cedar]] or [[Graham#Node_characteristics|Graham]] Broadwell node should function on Narval, otherwise you will need to recompile with the appropriate architecture parameters (see ''Intel processors'' below). | Narval is equiped with 2nd and 3rd generation AMD EPYC processors which support [https://fr.wikipedia.org/wiki/Advanced_Vector_Extensions#Advanced_Vector_Extensions_2 AVX2 instructions]. This instruction set is identical to the one used by INTEL processors on the [[Béluga/en#Node_characteristics|Béluga]], [[Cedar#Node_characteristics|Cedar]], [[Graham#Node_characteristics|Graham]] et [[Niagara#Node_characteristics|Niagara]] nodes. The Narval AMD processors and the Intel processors of the [https://fr.wikipedia.org/wiki/Haswell_(microarchitecture) Haswell] generation are both restricted to the older AVX2 instructions. As such, applications compiled on a [[Cedarr#Node_characteristics|Cedar]] or [[Graham#Node_characteristics|Graham]] Broadwell node should function on Narval, otherwise you will need to recompile with the appropriate architecture parameters (see ''Intel processors'' below). | ||
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Unfortunately, Narval's AMD processors are ''incompatible'' with the [https://en.wikipedia.org/wiki/AVX-512 AVX512] instruction set (from https://en.wikipedia.org/wiki/Skylake Skylake] onwards) on the [[Béluga/en#Node_characteristics|Béluga]] and [[Niagarar#Node_characteristics|Niagara]] nodes, as well as the more recent nodes on [[Cedar#Node_characteristics|Cedar]] and [[Graham/#Node_characteristics|Graham]]. Consequently, the applications compiled on those relatively recent Intel nodes will probably not function on Narval and recompiling will certainly be necessary (see ''Intel compilers'' below). | |||
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==Compilation avec le compilateur Intel== | ==Compilation avec le compilateur Intel== | ||